<template>
    <div class="login">
        <section class="form_container">
            <div class="manage_tip">
                <span class="title">后台管理系统（登陆）</span>
                <el-form :model="loginUser" :rules="rules" ref="loginForm" label-width="80px" class="loginForm">
                    <el-form-item label="邮箱" prop="email">
                        <el-input placeholder="请输入邮箱" v-model="loginUser.email"></el-input>
                    </el-form-item>
                    <el-form-item label="密码" prop="password">
                        <el-input type="password" placeholder="请输入用密码" v-model="loginUser.password"></el-input>
                    </el-form-item>
                    <el-form-item>
                        <el-button type="primary" class="submit_btn" @click="submitForm('loginForm')">登陆</el-button>
                    </el-form-item>
                    <div class="tiparea">
                        <p>还没有账号？现在
                            <router-link to='/register'>注册</router-link>
                        </p>
                    </div>
                </el-form>
            </div>
        </section>
    </div>
</template>

<script>
    import { Message } from 'element-ui'
    import jwt_decode from 'jwt-decode'
    export default {
        name: 'Login',
        data() {
            return {
                loginUser: {
                    email: '527273199@qq.com',
                    password: ''
                },
                rules: {
                    email: [
                        {
                            type: "email",
                            required: true,
                            message: '邮箱格式不正确',
                            trigger: 'blur'
                        }
                    ],
                    password: [
                        {
                            required: true,
                            message: '密码不能为空',
                            trigger: 'blur'
                        },
                        {
                            min: 6,
                            max: 30,
                            message: '长度在6~30个字符之间',
                            trigger: 'blur'
                        }
                    ]
                }
            }
        },
        methods: {
            submitForm(formName) {
                this.$refs[formName].validate((valid) => {
                    if (valid) {
                        this.$axios.post('/api/users/login', this.loginUser)
                            .then(res => {
                                console.log(res)
                                const { token } = res.data
                                //本地存储token
                                localStorage.setItem('eleToken', token);

                                //解析token
                                const decode = jwt_decode(token);
                                // 存储数据
                                this.$store.dispatch("setIsAutnenticated", !this.isEmpty(decode));
                                this.$store.dispatch("setUser", decode);

                                this.$router.push('./index');
                            })
                            .catch(err => {
                                this.$message.error('登陆失败！');
                            })
                    } else {
                        return false;
                    }
                });
            },
            isEmpty(value) {
                return (
                    value === undefined ||
                    value === null ||
                    (typeof value === "object" && Object.keys(value).length === 0) ||
                    (typeof value === "string" && value.trim().length === 0)
                );
            }
        }
    }
</script>
<style scoped>
    .login {
        position: relative;
        width: 100%;
        height: 100%;
        background: url(../assets/bg.jpg) no-repeat center center;
        background-size: 100% 100%;
    }

    .form_container {
        width: 370px;
        height: 210px;
        position: absolute;
        top: 10%;
        left: 34%;
        padding: 25px;
        border-radius: 5px;
        text-align: center;
    }

    .form_container .manage_tip .title {
        font-family: "Microsoft YaHei";
        font-weight: bold;
        font-size: 26px;
        color: #fff;
    }

    .loginForm {
        margin-top: 20px;
        background-color: #fff;
        padding: 20px 40px 20px 20px;
        border-radius: 5px;
        box-shadow: 0px 5px 10px #cccc;
    }

    .submit_btn {
        width: 100%;
    }

    .tiparea {
        text-align: right;
        font-size: 12px;
        color: #333;
    }

    .tiparea p a {
        color: #409eff;
    }
</style>